/* ==============================================================================
*
*   Copyright (c) 2010, Pierre Favier
*   All rights reserved.
*
*   NTasking is free software: you can redistribute it and/or modify it
*   under the terms of the GNU General Public License as published by the
*   Free Software Foundation.
*
*   Redistribution and use in source and binary forms, with or without
*   modification, are permitted provided that the following conditions
*   are met:
*
*   -   Redistributions of source code must retain the above copyright notice,
*       this list of conditions and the following disclaimer.
*
*   -   Redistributions in binary form must reproduce the above
*       copyright notice, this list of conditions and the following
*       disclaimer in the documentation and/or other materials
*       provided with the distribution.
*
*   THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
*   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
*   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
*   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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*   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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*   THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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*
* ============================================================================== */

namespace NTasking.Internals
{

    /// <summary>
    /// Represent the base of all single methods (as opposed to families) with a given method profile and return type.
    /// </summary>
    /// <typeparam name="RetT">The type returned by the synchronized method.</typeparam>
    /// <typeparam name="CallDelegateT">A delegate type representing the calling profile for performing a synchronous call.</typeparam>
    /// <typeparam name="IDelegateT">A delegate type representing the synchronized method calling profile for intercepting a call.</typeparam>
    internal abstract class SingleMethod<RetT, CallDelegateT, IDelegateT> :
        SynchronizedMethod<RetT, CallDelegateT, IDelegateT, CallDelegateT>

        where CallDelegateT : class // Should be MulticastDelegate but refused by the compiler
        where IDelegateT : class // Should be MulticastDelegate but refused by the compiler
    {

        /// <summary>
        /// Creates a <see cref="MethodCall"/> which represents a requeue onto the current instance.
        /// </summary>
        /// <returns>
        /// A <see cref="MethodCall"/> which represents a requeue onto the current instance
        /// </returns>
        internal override MethodCall CreateRequeueCall()
        {
            return new MethodCall<RetT>(this, null);
        }


        /// <summary>
        /// Create an <see cref="ExecutionContext"/> representing an accept of the current instance.
        /// </summary>
        /// <value>An <see cref="ExecutionContext"/> representing an accept of the current instance.</value>
        internal override ExecutionContext CreateExecutionContext()
        {
            return new ExecutionContext<CallDelegateT> { Target = Family };
        }

    }

}
